From vibrant red maples to golden Norway maples, some Pa. trees are still displaying their seasonal transformations.

This video highlights 9 citrus tree varieties that can thrive in cold climates, ranked from most to least cold-hardy. Learn practical tips for keeping your trees healthy during freezing temperatures ...

Ginkgo Trees in Washington D.C. There’s a tendency to think of “the natural world” as everything beyond the asphalt. But soil often lies just a couple inches below the concrete, and the design of our ...